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Theory
Tests
Judge the wind speed from a visual description of the sea
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"Long waves begin to form. White foam crests are very frequent. Some airborne spray is present" best describes the sea conditions for which beaufort wind scale number?
"Small wavelets. Crests of glassy appearance, not breaking" best describes the sea conditions for which beaufort wind scale number?
"Small waves with breaking crests. Fairly frequent whitecaps" best describes the sea conditions for which beaufort wind scale number?